It is only two of us with our PC-2350 for 7 years now. We have a dinette and a single relaxing seat which has been working out perfectly over the years. You can see our setup
HERE.
If we had just the dinette, we'd miss a place to kick back. If we had just a couch, we'd miss a place to sit upright with a decent table.
WHAT WE LEARNED IN DINETTE COMFORTWe bought our rig with the standard cloth cushions. I later replaced them with factory optional leather cushions with memory foam which made a HUGE improvement in dinette comfort. Great Comfort was immediately noticed and lasts 4 or more times longer before I need to get up to stretch.
If you look at our dinette in my link above, you will see the original cloth trim on the frames of the benches. Our original cushions were like that, but now as shown with leather cushions. The memory foam makes 80% of the difference, the smooth leather making up the rest. The leather eliminates the grip of the seat to your body, making it very easy to shift your weight without a thought given to it. The memory foam is more dense and thinner which translates to better butt & back support along with more elbow room.
If your dinette is terribly uncomfortable to sit at for extended periods, consider memory foam and smooth leather or even vinyl.
I contemplate changing our two-post table support system to the wall-mount with end leg design to improve leg room.